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Regarding the bilateral relationship between financial decentralization and regional development at the national level, this study examines the relationship between regional inequality and vertical balance financial decentralization across the provinces of Iran. For this purpose, the calculations are carried out in two stages: in the first stage, the Composite Index of Regional Development (CIRD) is calculated in five dimensions (macroeconomics, science and innovation, environmental sustainability, human capital and public services) by using the two-stage principal components analysis (PCA) during 2006-2016. In the second stage, the interactions between vertical balance financial decentralization and regional development are estimated using the simultaneous equations and error component two-stage least squares (EC2SLS). The results of the first stage analysis show that Tehran province is at the highest level of development, and Sistan and Baluchestan province is at the lowest level of development, and these two provinces practically reflect the wide inequality in the provinces of Iran. In addition, the highest regional inequality is related to the dimensions of science, innovation and human capital. The results of the second stage indicate that the effect of vertical balance financial decentralization on negative regional development is significant and negative, meaning that if provinces spend based on their income, a slight decrease in provincial development has it Because provinces play lesser role in determining tax rates and bases, less developed provinces are not able to generate sufficient revenue to cover their provincial expenditures. Financial decentralization also increases with an increase in regional development, meaning that provinces with different levels of development are likely to have different tendencies toward the quality and quantity of public goods.

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In this paper, we will review the foreign exchange market and will try to extract an exchange market pressure and an intervention index for Iran by following the Weymark (1995) approach to evaluate the Central Bank of Iran’s exchange rate policy during 1368:Q1 to 1391:Q3. The estimation method employed, is the econometric technique known in the literature as the Two-Stage Least Squares (2SLS).The exchange market pressure’s mean value of 0.062 provides evidence that depreciating pressure remained dominant over the entire sample period. Also, the  mean  value  of  the  intervention index is 0.44,  indicating that the foreign  exchange reserve and exchange rate changes absorbed  forty-four  and fifty-six percent of the pressure, respectively. Otherwise the results of the paper show that on an average there was a downward pressure on Iran’s currency and the Central Bank of Iran pursued an active intervention policy. Specifically, as the intervention index shows, the Central Bank of Iran used both exchange rate and foreign exchange reserve interventions for restoring the foreign exchange market to equilibrium levels, a policy known as the managed float exchange rate regime.